Blood pump having a disposable blood passage cartridge with integrated pressure sensors
DCFirst Claim
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1. A disposable cartridge for mounting an extracorporeal blood passage on a pump device comprising:
- a. a first cartridge housing supporting said blood passage, wherein said first cartridge housing is configured to seat in a first recess of the pump device, wherein said blood passage has a blood inlet connectable to a vascular system of a patient and a blood outlet connectable to the vascular system such that blood flows through the blood passage;
b. a blood pump coupling loop of the blood passage attached to the first cartridge housing and extending outwardly from said housing, wherein a blood pump of the device engages the pump coupling loop when said first cartridge housing is seated on the blood pump device;
c. a second cartridge housing supporting said blood passage and a filtrate passage, wherein said second cartridge housing is distinct and separate from said first cartridge housing, wherein said second cartridge housing is configured to seat in a second recess of the blood pump device, and d. a filtrate pump coupling loop of the filtrate passage extending outwardly from said second cartridge housing, wherein a filtrate pump of the device engages the filtrate pump coupling loop when said cartridge housing is seat on the pump device, wherein through said filtrate passage flows filtrate withdraw from blood in the blood passage.
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Abstract
An integrated disposable cartridge for dialysis or ultrafiltration treatment of blood is disclosed that includes integral miniature pressure sensors. Sensors are embedded in the tubing of the cartridge to measure pressure of blood or other fluids. Cartridge elements form a continuous smooth bore passage for blood that reduces probability of clotting.
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Citations
31 Claims
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1. A disposable cartridge for mounting an extracorporeal blood passage on a pump device comprising:
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a. a first cartridge housing supporting said blood passage, wherein said first cartridge housing is configured to seat in a first recess of the pump device, wherein said blood passage has a blood inlet connectable to a vascular system of a patient and a blood outlet connectable to the vascular system such that blood flows through the blood passage;
b. a blood pump coupling loop of the blood passage attached to the first cartridge housing and extending outwardly from said housing, wherein a blood pump of the device engages the pump coupling loop when said first cartridge housing is seated on the blood pump device;
c. a second cartridge housing supporting said blood passage and a filtrate passage, wherein said second cartridge housing is distinct and separate from said first cartridge housing, wherein said second cartridge housing is configured to seat in a second recess of the blood pump device, and d. a filtrate pump coupling loop of the filtrate passage extending outwardly from said second cartridge housing, wherein a filtrate pump of the device engages the filtrate pump coupling loop when said cartridge housing is seat on the pump device, wherein through said filtrate passage flows filtrate withdraw from blood in the blood passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A disposable extracorporeal blood circuit for processing blood from a mammal and attachable to a blood treatment device having a blood pump and a filtrate pump, said blood circuit comprising:
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a blood passage having a blood withdrawal port connectable to a vascular system of the mammal, a blood return port connectable to the vascular system, and a blood passage between the withdrawal port and the return port through which blood flows wherein the blood passage has a smooth and continuous wall throughout the passage;
a blood filter having a blood inlet and a blood outlet coupled to said blood passage such that the blood flows through said filter, and said filter further comprising a filtrate output coupled to a filtrate line, a first cartridge housing to which is attached a blood loop of the blood passage and the pressure sensor, wherein the blood passage is mounted to an inside surface of the first cartridge housing such that the blood loop extends outwardly of the cartridge housing, and said first cartridge housing is detachably mountable to the blood treatment device to engage the blood loop to the blood pump when the first cartridge housing is mounted on the device, and a second cartridge housing to which is attached a filtrate loop of the filtrate line, wherein the filtrate line is mounted to an inside surface of the second cartridge housing such that said filtrate loop extends outwardly of the second cartridge housing, said second cartridge housing is distinct and separate from the first cartridge housing, and said second cartridge housing is detachably mountable to the device to engage the filtrate loop to the filtrate pump of the blood treatment device. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification